Analysis of bottleneck motion using Voronoi diagrams

TL;DR

This paper applies Voronoi diagram-based density measurement to analyze pedestrian motion through a bottleneck, reducing fluctuations and enabling detailed insights at smaller spatial scales.

Contribution

It introduces a Voronoi-based density measurement method to study pedestrian flow, demonstrating its effectiveness in reducing fluctuations compared to standard methods.

Findings

Reduced density fluctuations in bottleneck experiments

Enhanced analysis at smaller spatial scales

Insights into pedestrian motion dynamics

Abstract

Standard definitions of the density exhibit large fluctuations when the size of the measurement area is comparable with the size of a pedestrian. An alternative measurement method exists where a personal space, calculated through the Voronoi diagram, is assigned to each pedestrian. In this contribution this method is applied to an experiment studying motion through a bottleneck and the reduced fluctuations demonstrated. The integrated density also permits examination on much smaller spatial scales than the standard definition, the insights into the pedestrian motion this provides are discussed.